#!/usr/bin/env python # Copyright 2016 OpenMarket Ltd # Copyright 2020 The Matrix.org Foundation C.I.C. # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. import contextlib import logging import sys from typing import Dict, Iterable, Optional, Set from typing_extensions import ContextManager from twisted.internet import address from twisted.web.resource import IResource from twisted.web.server import Request import synapse import synapse.events from synapse.api.errors import HttpResponseException, RequestSendFailed, SynapseError from synapse.api.urls import ( CLIENT_API_PREFIX, FEDERATION_PREFIX, LEGACY_MEDIA_PREFIX, MEDIA_PREFIX, SERVER_KEY_V2_PREFIX, ) from synapse.app import _base from synapse.app._base import register_start from synapse.config._base import ConfigError from synapse.config.homeserver import HomeServerConfig from synapse.config.logger import setup_logging from synapse.config.server import ListenerConfig from synapse.federation import send_queue from synapse.federation.transport.server import TransportLayerServer from synapse.handlers.presence import ( BasePresenceHandler, PresenceState, get_interested_parties, ) from synapse.http.server import JsonResource, OptionsResource from synapse.http.servlet import RestServlet, parse_json_object_from_request from synapse.http.site import SynapseSite from synapse.logging.context import LoggingContext from synapse.metrics import METRICS_PREFIX, MetricsResource, RegistryProxy from synapse.metrics.background_process_metrics import run_as_background_process from synapse.replication.http import REPLICATION_PREFIX, ReplicationRestResource from synapse.replication.http.presence import ( ReplicationBumpPresenceActiveTime, ReplicationPresenceSetState, ) from synapse.replication.slave.storage._base import BaseSlavedStore from synapse.replication.slave.storage.account_data import SlavedAccountDataStore from synapse.replication.slave.storage.appservice import SlavedApplicationServiceStore from synapse.replication.slave.storage.client_ips import SlavedClientIpStore from synapse.replication.slave.storage.deviceinbox import SlavedDeviceInboxStore from synapse.replication.slave.storage.devices import SlavedDeviceStore from synapse.replication.slave.storage.directory import DirectoryStore from synapse.replication.slave.storage.events import SlavedEventStore from synapse.replication.slave.storage.filtering import SlavedFilteringStore from synapse.replication.slave.storage.groups import SlavedGroupServerStore from synapse.replication.slave.storage.keys import SlavedKeyStore from synapse.replication.slave.storage.presence import SlavedPresenceStore from synapse.replication.slave.storage.profile import SlavedProfileStore from synapse.replication.slave.storage.push_rule import SlavedPushRuleStore from synapse.replication.slave.storage.pushers import SlavedPusherStore from synapse.replication.slave.storage.receipts import SlavedReceiptsStore from synapse.replication.slave.storage.registration import SlavedRegistrationStore from synapse.replication.slave.storage.room import RoomStore from synapse.replication.slave.storage.transactions import SlavedTransactionStore from synapse.replication.tcp.client import ReplicationDataHandler from synapse.replication.tcp.commands import ClearUserSyncsCommand from synapse.replication.tcp.streams import ( AccountDataStream, DeviceListsStream, GroupServerStream, PresenceStream, PushersStream, PushRulesStream, ReceiptsStream, TagAccountDataStream, ToDeviceStream, ) from synapse.rest.admin import register_servlets_for_media_repo from synapse.rest.client.v1 import events, login, room from synapse.rest.client.v1.initial_sync import InitialSyncRestServlet from synapse.rest.client.v1.profile import ( ProfileAvatarURLRestServlet, ProfileDisplaynameRestServlet, ProfileRestServlet, ) from synapse.rest.client.v1.push_rule import PushRuleRestServlet from synapse.rest.client.v1.voip import VoipRestServlet from synapse.rest.client.v2_alpha import ( account_data, groups, read_marker, receipts, room_keys, sync, tags, user_directory, ) from synapse.rest.client.v2_alpha._base import client_patterns from synapse.rest.client.v2_alpha.account import ThreepidRestServlet from synapse.rest.client.v2_alpha.account_data import ( AccountDataServlet, RoomAccountDataServlet, ) from synapse.rest.client.v2_alpha.devices import DevicesRestServlet from synapse.rest.client.v2_alpha.keys import ( KeyChangesServlet, KeyQueryServlet, OneTimeKeyServlet, ) from synapse.rest.client.v2_alpha.register import RegisterRestServlet from synapse.rest.client.v2_alpha.sendtodevice import SendToDeviceRestServlet from synapse.rest.client.versions import VersionsRestServlet from synapse.rest.health import HealthResource from synapse.rest.key.v2 import KeyApiV2Resource from synapse.rest.synapse.client import build_synapse_client_resource_tree from synapse.server import HomeServer, cache_in_self from synapse.storage.databases.main.censor_events import CensorEventsStore from synapse.storage.databases.main.client_ips import ClientIpWorkerStore from synapse.storage.databases.main.e2e_room_keys import EndToEndRoomKeyStore from synapse.storage.databases.main.media_repository import MediaRepositoryStore from synapse.storage.databases.main.metrics import ServerMetricsStore from synapse.storage.databases.main.monthly_active_users import ( MonthlyActiveUsersWorkerStore, ) from synapse.storage.databases.main.presence import UserPresenceState from synapse.storage.databases.main.search import SearchWorkerStore from synapse.storage.databases.main.stats import StatsStore from synapse.storage.databases.main.transactions import TransactionWorkerStore from synapse.storage.databases.main.ui_auth import UIAuthWorkerStore from synapse.storage.databases.main.user_directory import UserDirectoryStore from synapse.types import ReadReceipt from synapse.util.async_helpers import Linearizer from synapse.util.httpresourcetree import create_resource_tree from synapse.util.versionstring import get_version_string logger = logging.getLogger("synapse.app.generic_worker") class PresenceStatusStubServlet(RestServlet): """If presence is disabled this servlet can be used to stub out setting presence status. """ PATTERNS = client_patterns("/presence/(?P[^/]*)/status") def __init__(self, hs): super().__init__() self.auth = hs.get_auth() async def on_GET(self, request, user_id): await self.auth.get_user_by_req(request) return 200, {"presence": "offline"} async def on_PUT(self, request, user_id): await self.auth.get_user_by_req(request) return 200, {} class KeyUploadServlet(RestServlet): """An implementation of the `KeyUploadServlet` that responds to read only requests, but otherwise proxies through to the master instance. """ PATTERNS = client_patterns("/keys/upload(/(?P[^/]+))?$") def __init__(self, hs): """ Args: hs (synapse.server.HomeServer): server """ super().__init__() self.auth = hs.get_auth() self.store = hs.get_datastore() self.http_client = hs.get_simple_http_client() self.main_uri = hs.config.worker_main_http_uri async def on_POST(self, request: Request, device_id: Optional[str]): requester = await self.auth.get_user_by_req(request, allow_guest=True) user_id = requester.user.to_string() body = parse_json_object_from_request(request) if device_id is not None: # passing the device_id here is deprecated; however, we allow it # for now for compatibility with older clients. if requester.device_id is not None and device_id != requester.device_id: logger.warning( "Client uploading keys for a different device " "(logged in as %s, uploading for %s)", requester.device_id, device_id, ) else: device_id = requester.device_id if device_id is None: raise SynapseError( 400, "To upload keys, you must pass device_id when authenticating" ) if body: # They're actually trying to upload something, proxy to main synapse. # Proxy headers from the original request, such as the auth headers # (in case the access token is there) and the original IP / # User-Agent of the request. headers = { header: request.requestHeaders.getRawHeaders(header, []) for header in (b"Authorization", b"User-Agent") } # Add the previous hop to the X-Forwarded-For header. x_forwarded_for = request.requestHeaders.getRawHeaders( b"X-Forwarded-For", [] ) # we use request.client here, since we want the previous hop, not the # original client (as returned by request.getClientAddress()). if isinstance(request.client, (address.IPv4Address, address.IPv6Address)): previous_host = request.client.host.encode("ascii") # If the header exists, add to the comma-separated list of the first # instance of the header. Otherwise, generate a new header. if x_forwarded_for: x_forwarded_for = [ x_forwarded_for[0] + b", " + previous_host ] + x_forwarded_for[1:] else: x_forwarded_for = [previous_host] headers[b"X-Forwarded-For"] = x_forwarded_for # Replicate the original X-Forwarded-Proto header. Note that # XForwardedForRequest overrides isSecure() to give us the original protocol # used by the client, as opposed to the protocol used by our upstream proxy # - which is what we want here. headers[b"X-Forwarded-Proto"] = [ b"https" if request.isSecure() else b"http" ] try: result = await self.http_client.post_json_get_json( self.main_uri + request.uri.decode("ascii"), body, headers=headers ) except HttpResponseException as e: raise e.to_synapse_error() from e except RequestSendFailed as e: raise SynapseError(502, "Failed to talk to master") from e return 200, result else: # Just interested in counts. result = await self.store.count_e2e_one_time_keys(user_id, device_id) return 200, {"one_time_key_counts": result} class _NullContextManager(ContextManager[None]): """A context manager which does nothing.""" def __exit__(self, exc_type, exc_val, exc_tb): pass UPDATE_SYNCING_USERS_MS = 10 * 1000 class GenericWorkerPresence(BasePresenceHandler): def __init__(self, hs): super().__init__(hs) self.hs = hs self.is_mine_id = hs.is_mine_id self.presence_router = hs.get_presence_router() self._presence_enabled = hs.config.use_presence # The number of ongoing syncs on this process, by user id. # Empty if _presence_enabled is false. self._user_to_num_current_syncs = {} # type: Dict[str, int] self.notifier = hs.get_notifier() self.instance_id = hs.get_instance_id() # user_id -> last_sync_ms. Lists the users that have stopped syncing # but we haven't notified the master of that yet self.users_going_offline = {} self._bump_active_client = ReplicationBumpPresenceActiveTime.make_client(hs) self._set_state_client = ReplicationPresenceSetState.make_client(hs) self._send_stop_syncing_loop = self.clock.looping_call( self.send_stop_syncing, UPDATE_SYNCING_USERS_MS ) self._busy_presence_enabled = hs.config.experimental.msc3026_enabled hs.get_reactor().addSystemEventTrigger( "before", "shutdown", run_as_background_process, "generic_presence.on_shutdown", self._on_shutdown, ) def _on_shutdown(self): if self._presence_enabled: self.hs.get_tcp_replication().send_command( ClearUserSyncsCommand(self.instance_id) ) def send_user_sync(self, user_id, is_syncing, last_sync_ms): if self._presence_enabled: self.hs.get_tcp_replication().send_user_sync( self.instance_id, user_id, is_syncing, last_sync_ms ) def mark_as_coming_online(self, user_id): """A user has started syncing. Send a UserSync to the master, unless they had recently stopped syncing. Args: user_id (str) """ going_offline = self.users_going_offline.pop(user_id, None) if not going_offline: # Safe to skip because we haven't yet told the master they were offline self.send_user_sync(user_id, True, self.clock.time_msec()) def mark_as_going_offline(self, user_id): """A user has stopped syncing. We wait before notifying the master as its likely they'll come back soon. This allows us to avoid sending a stopped syncing immediately followed by a started syncing notification to the master Args: user_id (str) """ self.users_going_offline[user_id] = self.clock.time_msec() def send_stop_syncing(self): """Check if there are any users who have stopped syncing a while ago and haven't come back yet. If there are poke the master about them. """ now = self.clock.time_msec() for user_id, last_sync_ms in list(self.users_going_offline.items()): if now - last_sync_ms > UPDATE_SYNCING_USERS_MS: self.users_going_offline.pop(user_id, None) self.send_user_sync(user_id, False, last_sync_ms) async def user_syncing( self, user_id: str, affect_presence: bool ) -> ContextManager[None]: """Record that a user is syncing. Called by the sync and events servlets to record that a user has connected to this worker and is waiting for some events. """ if not affect_presence or not self._presence_enabled: return _NullContextManager() curr_sync = self._user_to_num_current_syncs.get(user_id, 0) self._user_to_num_current_syncs[user_id] = curr_sync + 1 # If we went from no in flight sync to some, notify replication if self._user_to_num_current_syncs[user_id] == 1: self.mark_as_coming_online(user_id) def _end(): # We check that the user_id is in user_to_num_current_syncs because # user_to_num_current_syncs may have been cleared if we are # shutting down. if user_id in self._user_to_num_current_syncs: self._user_to_num_current_syncs[user_id] -= 1 # If we went from one in flight sync to non, notify replication if self._user_to_num_current_syncs[user_id] == 0: self.mark_as_going_offline(user_id) @contextlib.contextmanager def _user_syncing(): try: yield finally: _end() return _user_syncing() async def notify_from_replication(self, states, stream_id): parties = await get_interested_parties(self.store, self.presence_router, states) room_ids_to_states, users_to_states = parties self.notifier.on_new_event( "presence_key", stream_id, rooms=room_ids_to_states.keys(), users=users_to_states.keys(), ) async def process_replication_rows(self, token, rows): states = [ UserPresenceState( row.user_id, row.state, row.last_active_ts, row.last_federation_update_ts, row.last_user_sync_ts, row.status_msg, row.currently_active, ) for row in rows ] for state in states: self.user_to_current_state[state.user_id] = state stream_id = token await self.notify_from_replication(states, stream_id) def get_currently_syncing_users_for_replication(self) -> Iterable[str]: return [ user_id for user_id, count in self._user_to_num_current_syncs.items() if count > 0 ] async def set_state(self, target_user, state, ignore_status_msg=False): """Set the presence state of the user.""" presence = state["presence"] valid_presence = ( PresenceState.ONLINE, PresenceState.UNAVAILABLE, PresenceState.OFFLINE, PresenceState.BUSY, ) if presence not in valid_presence or ( presence == PresenceState.BUSY and not self._busy_presence_enabled ): raise SynapseError(400, "Invalid presence state") user_id = target_user.to_string() # If presence is disabled, no-op if not self.hs.config.use_presence: return # Proxy request to master await self._set_state_client( user_id=user_id, state=state, ignore_status_msg=ignore_status_msg ) async def bump_presence_active_time(self, user): """We've seen the user do something that indicates they're interacting with the app. """ # If presence is disabled, no-op if not self.hs.config.use_presence: return # Proxy request to master user_id = user.to_string() await self._bump_active_client(user_id=user_id) class GenericWorkerSlavedStore( # FIXME(#3714): We need to add UserDirectoryStore as we write directly # rather than going via the correct worker. UserDirectoryStore, StatsStore, UIAuthWorkerStore, EndToEndRoomKeyStore, SlavedDeviceInboxStore, SlavedDeviceStore, SlavedReceiptsStore, SlavedPushRuleStore, SlavedGroupServerStore, SlavedAccountDataStore, SlavedPusherStore, CensorEventsStore, ClientIpWorkerStore, SlavedEventStore, SlavedKeyStore, RoomStore, DirectoryStore, SlavedApplicationServiceStore, SlavedRegistrationStore, SlavedTransactionStore, SlavedProfileStore, SlavedClientIpStore, SlavedPresenceStore, SlavedFilteringStore, MonthlyActiveUsersWorkerStore, MediaRepositoryStore, ServerMetricsStore, SearchWorkerStore, TransactionWorkerStore, BaseSlavedStore, ): pass class GenericWorkerServer(HomeServer): DATASTORE_CLASS = GenericWorkerSlavedStore def _listen_http(self, listener_config: ListenerConfig): port = listener_config.port bind_addresses = listener_config.bind_addresses assert listener_config.http_options is not None site_tag = listener_config.http_options.tag if site_tag is None: site_tag = port # We always include a health resource. resources = {"/health": HealthResource()} # type: Dict[str, IResource] for res in listener_config.http_options.resources: for name in res.names: if name == "metrics": resources[METRICS_PREFIX] = MetricsResource(RegistryProxy) elif name == "client": resource = JsonResource(self, canonical_json=False) RegisterRestServlet(self).register(resource) login.register_servlets(self, resource) ThreepidRestServlet(self).register(resource) DevicesRestServlet(self).register(resource) KeyQueryServlet(self).register(resource) OneTimeKeyServlet(self).register(resource) KeyChangesServlet(self).register(resource) VoipRestServlet(self).register(resource) PushRuleRestServlet(self).register(resource) VersionsRestServlet(self).register(resource) ProfileAvatarURLRestServlet(self).register(resource) ProfileDisplaynameRestServlet(self).register(resource) ProfileRestServlet(self).register(resource) KeyUploadServlet(self).register(resource) AccountDataServlet(self).register(resource) RoomAccountDataServlet(self).register(resource) sync.register_servlets(self, resource) events.register_servlets(self, resource) room.register_servlets(self, resource, True) room.register_deprecated_servlets(self, resource) InitialSyncRestServlet(self).register(resource) room_keys.register_servlets(self, resource) tags.register_servlets(self, resource) account_data.register_servlets(self, resource) receipts.register_servlets(self, resource) read_marker.register_servlets(self, resource) SendToDeviceRestServlet(self).register(resource) user_directory.register_servlets(self, resource) # If presence is disabled, use the stub servlet that does # not allow sending presence if not self.config.use_presence: PresenceStatusStubServlet(self).register(resource) groups.register_servlets(self, resource) resources.update({CLIENT_API_PREFIX: resource}) resources.update(build_synapse_client_resource_tree(self)) elif name == "federation": resources.update({FEDERATION_PREFIX: TransportLayerServer(self)}) elif name == "media": if self.config.can_load_media_repo: media_repo = self.get_media_repository_resource() # We need to serve the admin servlets for media on the # worker. admin_resource = JsonResource(self, canonical_json=False) register_servlets_for_media_repo(self, admin_resource) resources.update( { MEDIA_PREFIX: media_repo, LEGACY_MEDIA_PREFIX: media_repo, "/_synapse/admin": admin_resource, } ) else: logger.warning( "A 'media' listener is configured but the media" " repository is disabled. Ignoring." ) if name == "openid" and "federation" not in res.names: # Only load the openid resource separately if federation resource # is not specified since federation resource includes openid # resource. resources.update( { FEDERATION_PREFIX: TransportLayerServer( self, servlet_groups=["openid"] ) } ) if name in ["keys", "federation"]: resources[SERVER_KEY_V2_PREFIX] = KeyApiV2Resource(self) if name == "replication": resources[REPLICATION_PREFIX] = ReplicationRestResource(self) root_resource = create_resource_tree(resources, OptionsResource()) _base.listen_tcp( bind_addresses, port, SynapseSite( "synapse.access.http.%s" % (site_tag,), site_tag, listener_config, root_resource, self.version_string, ), reactor=self.get_reactor(), ) logger.info("Synapse worker now listening on port %d", port) def start_listening(self, listeners: Iterable[ListenerConfig]): for listener in listeners: if listener.type == "http": self._listen_http(listener) elif listener.type == "manhole": _base.listen_manhole( listener.bind_addresses, listener.port, manhole_globals={"hs": self} ) elif listener.type == "metrics": if not self.get_config().enable_metrics: logger.warning( ( "Metrics listener configured, but " "enable_metrics is not True!" ) ) else: _base.listen_metrics(listener.bind_addresses, listener.port) else: logger.warning("Unsupported listener type: %s", listener.type) self.get_tcp_replication().start_replication(self) @cache_in_self def get_replication_data_handler(self): return GenericWorkerReplicationHandler(self) @cache_in_self def get_presence_handler(self): return GenericWorkerPresence(self) class GenericWorkerReplicationHandler(ReplicationDataHandler): def __init__(self, hs): super().__init__(hs) self.store = hs.get_datastore() self.presence_handler = hs.get_presence_handler() # type: GenericWorkerPresence self.notifier = hs.get_notifier() self.notify_pushers = hs.config.start_pushers self.pusher_pool = hs.get_pusherpool() self.send_handler = None # type: Optional[FederationSenderHandler] if hs.config.send_federation: self.send_handler = FederationSenderHandler(hs) async def on_rdata(self, stream_name, instance_name, token, rows): await super().on_rdata(stream_name, instance_name, token, rows) await self._process_and_notify(stream_name, instance_name, token, rows) async def _process_and_notify(self, stream_name, instance_name, token, rows): try: if self.send_handler: await self.send_handler.process_replication_rows( stream_name, token, rows ) if stream_name == PushRulesStream.NAME: self.notifier.on_new_event( "push_rules_key", token, users=[row.user_id for row in rows] ) elif stream_name in (AccountDataStream.NAME, TagAccountDataStream.NAME): self.notifier.on_new_event( "account_data_key", token, users=[row.user_id for row in rows] ) elif stream_name == ReceiptsStream.NAME: self.notifier.on_new_event( "receipt_key", token, rooms=[row.room_id for row in rows] ) await self.pusher_pool.on_new_receipts( token, token, {row.room_id for row in rows} ) elif stream_name == ToDeviceStream.NAME: entities = [row.entity for row in rows if row.entity.startswith("@")] if entities: self.notifier.on_new_event("to_device_key", token, users=entities) elif stream_name == DeviceListsStream.NAME: all_room_ids = set() # type: Set[str] for row in rows: if row.entity.startswith("@"): room_ids = await self.store.get_rooms_for_user(row.entity) all_room_ids.update(room_ids) self.notifier.on_new_event("device_list_key", token, rooms=all_room_ids) elif stream_name == PresenceStream.NAME: await self.presence_handler.process_replication_rows(token, rows) elif stream_name == GroupServerStream.NAME: self.notifier.on_new_event( "groups_key", token, users=[row.user_id for row in rows] ) elif stream_name == PushersStream.NAME: for row in rows: if row.deleted: self.stop_pusher(row.user_id, row.app_id, row.pushkey) else: await self.start_pusher(row.user_id, row.app_id, row.pushkey) except Exception: logger.exception("Error processing replication") async def on_position(self, stream_name: str, instance_name: str, token: int): await super().on_position(stream_name, instance_name, token) # Also call on_rdata to ensure that stream positions are properly reset. await self.on_rdata(stream_name, instance_name, token, []) def stop_pusher(self, user_id, app_id, pushkey): if not self.notify_pushers: return key = "%s:%s" % (app_id, pushkey) pushers_for_user = self.pusher_pool.pushers.get(user_id, {}) pusher = pushers_for_user.pop(key, None) if pusher is None: return logger.info("Stopping pusher %r / %r", user_id, key) pusher.on_stop() async def start_pusher(self, user_id, app_id, pushkey): if not self.notify_pushers: return key = "%s:%s" % (app_id, pushkey) logger.info("Starting pusher %r / %r", user_id, key) return await self.pusher_pool.start_pusher_by_id(app_id, pushkey, user_id) def on_remote_server_up(self, server: str): """Called when get a new REMOTE_SERVER_UP command.""" # Let's wake up the transaction queue for the server in case we have # pending stuff to send to it. if self.send_handler: self.send_handler.wake_destination(server) class FederationSenderHandler: """Processes the fedration replication stream This class is only instantiate on the worker responsible for sending outbound federation transactions. It receives rows from the replication stream and forwards the appropriate entries to the FederationSender class. """ def __init__(self, hs: GenericWorkerServer): self.store = hs.get_datastore() self._is_mine_id = hs.is_mine_id self.federation_sender = hs.get_federation_sender() self._hs = hs # Stores the latest position in the federation stream we've gotten up # to. This is always set before we use it. self.federation_position = None self._fed_position_linearizer = Linearizer(name="_fed_position_linearizer") def wake_destination(self, server: str): self.federation_sender.wake_destination(server) async def process_replication_rows(self, stream_name, token, rows): # The federation stream contains things that we want to send out, e.g. # presence, typing, etc. if stream_name == "federation": send_queue.process_rows_for_federation(self.federation_sender, rows) await self.update_token(token) # ... and when new receipts happen elif stream_name == ReceiptsStream.NAME: await self._on_new_receipts(rows) # ... as well as device updates and messages elif stream_name == DeviceListsStream.NAME: # The entities are either user IDs (starting with '@') whose devices # have changed, or remote servers that we need to tell about # changes. hosts = {row.entity for row in rows if not row.entity.startswith("@")} for host in hosts: self.federation_sender.send_device_messages(host) elif stream_name == ToDeviceStream.NAME: # The to_device stream includes stuff to be pushed to both local # clients and remote servers, so we ignore entities that start with # '@' (since they'll be local users rather than destinations). hosts = {row.entity for row in rows if not row.entity.startswith("@")} for host in hosts: self.federation_sender.send_device_messages(host) async def _on_new_receipts(self, rows): """ Args: rows (Iterable[synapse.replication.tcp.streams.ReceiptsStream.ReceiptsStreamRow]): new receipts to be processed """ for receipt in rows: # we only want to send on receipts for our own users if not self._is_mine_id(receipt.user_id): continue receipt_info = ReadReceipt( receipt.room_id, receipt.receipt_type, receipt.user_id, [receipt.event_id], receipt.data, ) await self.federation_sender.send_read_receipt(receipt_info) async def update_token(self, token): """Update the record of where we have processed to in the federation stream. Called after we have processed a an update received over replication. Sends a FEDERATION_ACK back to the master, and stores the token that we have processed in `federation_stream_position` so that we can restart where we left off. """ self.federation_position = token # We save and send the ACK to master asynchronously, so we don't block # processing on persistence. We don't need to do this operation for # every single RDATA we receive, we just need to do it periodically. if self._fed_position_linearizer.is_queued(None): # There is already a task queued up to save and send the token, so # no need to queue up another task. return run_as_background_process("_save_and_send_ack", self._save_and_send_ack) async def _save_and_send_ack(self): """Save the current federation position in the database and send an ACK to master with where we're up to. """ try: # We linearize here to ensure we don't have races updating the token # # XXX this appears to be redundant, since the ReplicationCommandHandler # has a linearizer which ensures that we only process one line of # replication data at a time. Should we remove it, or is it doing useful # service for robustness? Or could we replace it with an assertion that # we're not being re-entered? with (await self._fed_position_linearizer.queue(None)): # We persist and ack the same position, so we take a copy of it # here as otherwise it can get modified from underneath us. current_position = self.federation_position await self.store.update_federation_out_pos( "federation", current_position ) # We ACK this token over replication so that the master can drop # its in memory queues self._hs.get_tcp_replication().send_federation_ack(current_position) except Exception: logger.exception("Error updating federation stream position") def start(config_options): try: config = HomeServerConfig.load_config("Synapse worker", config_options) except ConfigError as e: sys.stderr.write("\n" + str(e) + "\n") sys.exit(1) # For backwards compatibility let any of the old app names. assert config.worker_app in ( "synapse.app.appservice", "synapse.app.client_reader", "synapse.app.event_creator", "synapse.app.federation_reader", "synapse.app.federation_sender", "synapse.app.frontend_proxy", "synapse.app.generic_worker", "synapse.app.media_repository", "synapse.app.pusher", "synapse.app.synchrotron", "synapse.app.user_dir", ) if config.worker_app == "synapse.app.appservice": if config.appservice.notify_appservices: sys.stderr.write( "\nThe appservices must be disabled in the main synapse process" "\nbefore they can be run in a separate worker." "\nPlease add ``notify_appservices: false`` to the main config" "\n" ) sys.exit(1) # Force the appservice to start since they will be disabled in the main config config.appservice.notify_appservices = True else: # For other worker types we force this to off. config.appservice.notify_appservices = False if config.worker_app == "synapse.app.user_dir": if config.server.update_user_directory: sys.stderr.write( "\nThe update_user_directory must be disabled in the main synapse process" "\nbefore they can be run in a separate worker." "\nPlease add ``update_user_directory: false`` to the main config" "\n" ) sys.exit(1) # Force the pushers to start since they will be disabled in the main config config.server.update_user_directory = True else: # For other worker types we force this to off. config.server.update_user_directory = False synapse.events.USE_FROZEN_DICTS = config.use_frozen_dicts hs = GenericWorkerServer( config.server_name, config=config, version_string="Synapse/" + get_version_string(synapse), ) setup_logging(hs, config, use_worker_options=True) hs.setup() # Ensure the replication streamer is always started in case we write to any # streams. Will no-op if no streams can be written to by this worker. hs.get_replication_streamer() register_start(_base.start, hs, config.worker_listeners) _base.start_worker_reactor("synapse-generic-worker", config) if __name__ == "__main__": with LoggingContext("main"): start(sys.argv[1:])